Almost 4 Months Old

Elizabeth is now almost 4 months old, on July 7th, on the 5th she gets her 4 month shots. She is getting so huge, she has rolled over but she has only done it twice, and usually can't figure out how to do it. To me she acts like a 2 month old, she will follow you or objects with her eyes now. I think she's beginning to recognize people, like me and her dad. Preemie clothes don't fit her at all anymore. She's almost long enough for her nb sleepers. She is beginning to stay awake more during the day, and sleep more at night. The doctors make me mad though because they treat her differently than anyother baby or preemie for that matter...they are making us keep the oxygen at her bedside only because she has scarring on her lungs, she's been off of oxygen since May 16th and has been great off of it. They are making us have all these people come to our house to check her out only because of her "incident", I mean if there's something wrong with her because of the lack of oxygen then we won't know until she begins to sit up, crawl, walk or talk ya know..shes only 4 months old..and I don't want her to have therapy done if she doesn't need it. Personally if she needs some sort of therapy down the road then yes I'll have her do it, but not at almost 4 months old or a month old gestationally..its pointless right now in my opinion.